diff options
Diffstat (limited to 'src/mesa/vbo/vbo_context.c')
-rw-r--r-- | src/mesa/vbo/vbo_context.c | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/src/mesa/vbo/vbo_context.c b/src/mesa/vbo/vbo_context.c new file mode 100644 index 00000000000..165e32da8a8 --- /dev/null +++ b/src/mesa/vbo/vbo_context.c @@ -0,0 +1,239 @@ +/* + * Mesa 3-D graphics library + * Version: 6.3 + * + * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <[email protected]> + */ + +#include "mtypes.h" +#include "vbo.h" +#include "vbo_context.h" +#include "imports.h" +#include "api_arrayelt.h" + +/* Reach out and grab this to use as the default: + */ +extern void _tnl_draw_prims( GLcontext *ctx, + const struct gl_client_array *arrays[], + const struct _mesa_prim *prims, + GLuint nr_prims, + const struct _mesa_index_buffer *ib, + GLuint min_index, + GLuint max_index ); + + + +#define NR_LEGACY_ATTRIBS 16 +#define NR_GENERIC_ATTRIBS 16 +#define NR_MAT_ATTRIBS 12 + +static void init_legacy_currval(GLcontext *ctx) +{ + struct vbo_context *vbo = vbo_context(ctx); + struct gl_client_array *arrays = vbo->legacy_currval; + GLuint i; + + memset(arrays, 0, sizeof(*arrays) * NR_LEGACY_ATTRIBS); + + /* Set up a constant (StrideB == 0) array for each current + * attribute: + */ + for (i = 0; i < NR_LEGACY_ATTRIBS; i++) { + struct gl_client_array *cl = &arrays[i]; + + /* Size will have to be determined at runtime: + */ + cl->Size = 1; + cl->Stride = 0; + cl->StrideB = 0; + cl->Enabled = 1; + cl->Type = GL_FLOAT; + cl->Ptr = (const void *)ctx->Current.Attrib[i]; + cl->BufferObj = ctx->Array.NullBufferObj; + } +} + + +static void init_generic_currval(GLcontext *ctx) +{ + struct vbo_context *vbo = vbo_context(ctx); + struct gl_client_array *arrays = vbo->generic_currval; + GLuint i; + + memset(arrays, 0, sizeof(*arrays) * NR_GENERIC_ATTRIBS); + + for (i = 0; i < NR_GENERIC_ATTRIBS; i++) { + struct gl_client_array *cl = &arrays[i]; + + /* This will have to be determined at runtime: + */ + cl->Size = 1; + + cl->Type = GL_FLOAT; + cl->Ptr = (const void *)ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + i]; + cl->Stride = 0; + cl->StrideB = 0; + cl->Enabled = 1; + cl->BufferObj = ctx->Array.NullBufferObj; + } +} + + +static void init_mat_currval(GLcontext *ctx) +{ + struct vbo_context *vbo = vbo_context(ctx); + struct gl_client_array *arrays = vbo->mat_currval; + GLuint i; + + memset(arrays, 0, sizeof(*arrays) * NR_MAT_ATTRIBS); + + /* Set up a constant (StrideB == 0) array for each current + * attribute: + */ + for (i = 0; i < NR_MAT_ATTRIBS; i++) { + struct gl_client_array *cl = &arrays[i]; + + /* Size is fixed for the material attributes, for others will + * be determined at runtime: + */ + switch (i - VERT_ATTRIB_GENERIC0) { + case MAT_ATTRIB_FRONT_SHININESS: + case MAT_ATTRIB_BACK_SHININESS: + cl->Size = 1; + break; + case MAT_ATTRIB_FRONT_INDEXES: + case MAT_ATTRIB_BACK_INDEXES: + cl->Size = 3; + break; + default: + cl->Size = 4; + break; + } + + if (i < MAT_ATTRIB_MAX) + cl->Ptr = (const void *)ctx->Light.Material.Attrib[i]; + else + cl->Ptr = (const void *)ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + i]; + + cl->Type = GL_FLOAT; + cl->Stride = 0; + cl->StrideB = 0; + cl->Enabled = 1; + cl->BufferObj = ctx->Array.NullBufferObj; + } +} + +#if 0 + +static void vbo_exec_current_init( struct vbo_exec_context *exec ) +{ + GLcontext *ctx = exec->ctx; + GLint i; + + /* setup the pointers for the typical 16 vertex attributes */ + for (i = 0; i < VBO_ATTRIB_FIRST_MATERIAL; i++) + exec->vtx.current[i] = ctx->Current.Attrib[i]; + + /* setup pointers for the 12 material attributes */ + for (i = 0; i < MAT_ATTRIB_MAX; i++) + exec->vtx.current[VBO_ATTRIB_FIRST_MATERIAL + i] = + ctx->Light.Material.Attrib[i]; +} +#endif + +GLboolean _vbo_CreateContext( GLcontext *ctx ) +{ + struct vbo_context *vbo = CALLOC_STRUCT(vbo_context); + + ctx->swtnl_im = (void *)vbo; + + /* Initialize the arrayelt helper + */ + if (!ctx->aelt_context && + !_ae_create_context( ctx )) { + return GL_FALSE; + } + + /* TODO: remove these pointers. + */ + vbo->legacy_currval = &vbo->currval[VBO_ATTRIB_POS]; + vbo->generic_currval = &vbo->currval[VBO_ATTRIB_GENERIC0]; + vbo->mat_currval = &vbo->currval[VBO_ATTRIB_MAT_FRONT_AMBIENT]; + + init_legacy_currval( ctx ); + init_generic_currval( ctx ); + init_mat_currval( ctx ); + + /* Build mappings from VERT_ATTRIB -> VBO_ATTRIB depending on type + * of vertex program active. + */ + { + GLuint i; + + /* When no vertex program, pull in the material attributes in + * the 16..32 generic range. + */ + for (i = 0; i < 16; i++) + vbo->map_vp_none[i] = i; + for (i = 0; i < 12; i++) + vbo->map_vp_none[16+i] = VBO_ATTRIB_MAT_FRONT_AMBIENT + i; + for (i = 0; i < 4; i++) + vbo->map_vp_none[28+i] = i; + + for (i = 0; i < VERT_ATTRIB_MAX; i++) + vbo->map_vp_arb[i] = i; + } + + + /* By default: + */ + vbo->draw_prims = _tnl_draw_prims; + + /* Hook our functions into exec and compile dispatch tables. These + * will pretty much be permanently installed, which means that the + * vtxfmt mechanism can be removed now. + */ + vbo_exec_init( ctx ); + vbo_save_init( ctx ); + + + return GL_TRUE; +} + +void _vbo_InvalidateState( GLcontext *ctx, GLuint new_state ) +{ + _ae_invalidate_state(ctx, new_state); + vbo_exec_invalidate_state(ctx, new_state); +} + + +void _vbo_DestroyContext( GLcontext *ctx ) +{ + if (ctx->aelt_context) { + _ae_destroy_context( ctx ); + ctx->aelt_context = NULL; + } + + FREE(vbo_context(ctx)); + ctx->swtnl_im = NULL; +} |